Description
Technical Manual (TM 9-1240-269-35P) for M34 Tank Periscope February 1969 FSN 1240-980-9290
This Technical Manual TM 9-1240-269-35P covers repair-parts and special-tools support for the M34 Tank Periscope and is dated February 1969. The documented periscope is identified by FSN 1240-980-9290.
This parts-focused Army publication supports direct support, general support, and depot maintenance of the M34. It provides a focused companion to the separate maintenance manual for this commander's optical instrument.
Historical Significance
The M34 was a daylight optical instrument used at the tank commander's station. Installed in the commander's cupola, it combined a wide observation window with magnified binocular optics so the commander could observe and sight while remaining under armor protection.
On M60A1-family vehicles, the commander's station could use the daylight M34 or the infrared-capable M36. Issued in 1969, TM 9-1240-269-35P preserves the Army's parts-support record for the M34 during the period when both daylight and infrared periscopes remained part of the vehicle family.
M34 Commander’s Periscope Application
The M34 served as the commander's direct-view observation and sighting instrument in the cupola. It included a unity-power observation window, binocular viewing system, focusing and interpupillary controls, and elevation and deflection boresight adjustments.
The M34 was associated with the M60A1 tank family and was also used at the commander's station on the M728 Combat Engineer Vehicle. These applications connect the parts manual to a distinct group of U.S. Army armored-vehicle fire-control systems.
What This Manual Covers
TM 9-1240-269-35P is a repair-parts and special-tools publication for direct support, general support, and depot maintenance of the M34 Tank Periscope. Its subject is the maintenance-support inventory associated with the periscope rather than operation of the complete vehicle.
The manual provides the parts-reference side of the M34's technical documentation. It is intended to be used alongside maintenance information for the optical and mechanical periscope assembly.
Key Features
- Publication number: TM 9-1240-269-35P
- Documented equipment: M34 Tank Periscope
- Publication date: February 1969
- Federal Stock Number: 1240-980-9290
- Document type: repair parts and special tools publication
- Maintenance levels: direct support, general support, and depot
- Vehicle context: M60A1 family and M728 Combat Engineer Vehicle
Why This Manual Matters
Parts manuals preserve the Army's component-level support record for specialized equipment. TM 9-1240-269-35P helps connect the M34 model designation and FSN with the repair-parts system used to maintain the commander's periscope.
It is especially useful as a companion to M34 maintenance documentation or as a focused addition to an M60A1-family technical library.
About This Manual
TM 9-1240-269-35P is a Department of the Army technical manual dated February 1969. It covers repair-parts and special-tools support for the M34 Tank Periscope under FSN 1240-980-9290 at direct support, general support, and depot maintenance levels.
Ideal For
This manual is a strong fit for:
- M60A1 tank historians and restoration researchers
- M728 Combat Engineer Vehicle researchers
- Military-optics and fire-control collectors
- Technical-manual reference libraries
- Researchers studying Army repair-parts publications
Approx length 8", Approx width 10", Approx height .35", Approx weight .5lbs.
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